B3311331313231311331322331333132313132313331323223313113313231333112331121   >>    B331133131323131133132233133313231313231333132322331311331323133311233112   <<    B3311331313231311331322331333132313132313331323223313113313231333112331123   >>      B3311331313231311331322331333132313132313331323223313113313231333112331122   >>